← Start with the original worked guide: Question 7

Practice variation 2 of 3

Differential equation — Exponential growth equation

Your question

Solve with .

This practice question was inspired by Question 7 in the 2025 NSW HSC Mathematics Extension 1 examination, © NESA. It is an original TestMum variation that practises the same mathematical idea, not an official NESA question.

Before you check

Open the step-by-step answer guide →